9:05 a.m.-- APD (Atlanta Police Department) communications receives a cell phone call from a citizen at Pryor and Alabama (streets) that an officer was down. An APD homicide investigator was on already at the scene for an appointment in court and was searching for a parking space. The same homicide investigator takes control at the crime scene.

9:45 a.m.-- APD takes command of the scene at this point on the streets, coordinating the investigative efforts of the assisting agencies: (FBI, U.S. Marshals, ATF, GBI, Fulton County Sheriff's Office, Fulton County police department and Fulton County marshals.) Photo of suspect Brian Nichols was circulated.

9:48 a.m. -- Atlanta fire chief arrives on the scene.

9:50 a.m. -- Briefing room was staged on the ninth floor of the Fulton County building. APD coordinated assignments for supporting law enforcement agencies. Atlanta Fire Rescue establishes an interior command as a medical command center, is notified that four people were shot, two fatally.